[chimerax-users] Smaller map when volume eraser

[Tom Goddard]

Hi Marta,

  I can see how using the map eraser button Erase Outside Sphere could be a handy way to crop out subregion making a smaller map.  So I added a "Reduce map bounds" button to map eraser that crops to the minimal box containing the sphere -- it does not do any erasing, just copies the map making it smaller in size.  This will be in tonight's ChimeraX builds.

	Tom




> On Apr 30, 2020, at 2:36 AM, Marta Perez Illana <marta.perez at cnb.csic.es> wrote:
> 
> Hi all
> 
> I know that when performing volume zone, we can set minimal Boundaries true, so we get a smaller map compared to the original. 
> Volume eraser gives zeroes, but as far as I understand, the size of the map is kept. 
> My maps are huge and my laptop is as it is. I am wondering if there is any option of, instead of getting zeroes when erasing, getting rid of this values and get a new, and smaller map, to work with lighter maps. I use  the volume zone, and reduce boundaries,  but sometimes is more convenient the erase tool...
> 
> Regards and thanks!
> 
> Marta 
> 
> 
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